Kilotest: Diagnoses of tab-opening link action unstated violation by HTML element 414 on Mozilla Foundation page

Here is how tools diagnose the tab-opening link action unstated issue for HTML element 414 of the Mozilla Foundation page.

Basics

• About the tab-opening link action unstated issue
  • Why it matters: Following a link opens a new window, surprising a user
  • Priority: high
  • Related WCAG standard: 3.2.5
• About the Mozilla Foundation page
  • URL: https://www.mozilla.org/en-US/
  • Tested on 2026-04-03 at 03:56
• About HTML element 414
  • Take me there
  • Tag name: A
  • Text: Own What You Build
  • Start tag: <a href="https://www.youtube.com/watch?v=obRiQme2b3M" class="m24-c-gallery-tile-link" rel="external" target="_blank" data-link-text="Watch now (Own What You Build)">
  • XPath: /html/body/div[2]/main[1]/section[1]/div[1]/div[1]/div[2]/h3[1]/a[1]
  • Bounding box: x = 620, y = 3502, width = 680, height = 35

Diagnoses

1. <p>Readers can always choose to open a link a new window. When a link forces open a new window, it can be confusing and annoying, especially for assistive device users who may wonder why their browser's "back" button is suddenly disabled.</p> <p>There are two general exceptions:</p> <ul> <li>When the user is filling out a form, and opening a link in the same window would cause them to lose their work.</li> <li>When the user is clearly warned a link will open a new window.</li> </ul> <p><strong>To fix:</strong> set this link back its default target, or add a screen-reader accessible warning (text or an icon with alt text).</p>

   Tool: Editoria11y (Princeton University)

   Rule: linkNewWindow